Early in the COVID-19 pandemic, a global shortage of hospital gowns, gloves, surgical masks, and respirators caused policymakers globally to panic. China increased imports decreased exports this personal protective equipment, removing supplies from world markets. Shortages led European Union US export controls as well other extraordinary policy actions, including effort reserve manufactured by ...

Nucleo-cytoplasmic transport of proteins is mediated by nuclear export signals, identified in various proteins executing heterologous biological functions. However, the molecular mechanism underlying the orchestration of export is only poorly understood. Using microinjection of defined recombinant export substrates, we now demonstrate that leucine-rich nuclear export signals varied dramatically...

Nanotechnology is the set of techniques used to engineer, characterize, and produce materials that have at least one dimension within the nanoscale. These nanomaterials, or nanoobjects, include nanoparticles and nanotubes. As dictated by the laws of quantum physics, a size within the nanoscale results in unique physicochemical properties and distinctive behaviors. Nanotechnology has a host of a...

Food is one of the basic needs for human life. Agriculture has been seen as primary occupation in Tamil life since earliest times. A system selling manufactured goods through barter was observed. Business basis economic development country. Merchants were called by their profession. The currency evolved systematically response to time environment and demand. During Sangam period, merchants who ...

in the present study, competitiveness of iranian pistachio exports and competitor countries in  the world market are studied. pistachio export advantage using indices of revealed comparative advantage (rca) approach and vector error correction model(vecm) based on  agricultural and non-petroleum export commodity basket were investigated separately. the results showed that iran has a comparative...

Geometrical defects of a manufactured feature are limited by form, size and location tolerances. The standardized semantics of those tolerances, i.e. their interpretation on the manufactured feature, presents a lot of drawbacks. We propose new semantics, based on the fitting of a unique theoretical feature on the manufactured feature. The fitting criterion we propose, named minimum volume crite...

EVELOPMENT PROJECTS go in di erent directions and each one presents its own dilemmas. Contradictory perceptions and practices have various consquences for the people a ected, for better or worse. Researching development is therefore crucial to deepen understanding of the risks associated with di erent strategies and the complexity of development paths. Sociologist Ulrich Bech developed the conc...

We consider the problem of testing the roundness of a manufactured object using the nger probing model of Cole and Yap 2]. When the object being tested is a disk and it's center is known, we describe a procedure which uses O(n) probes and O(n) computation time. (Here n = j1=qj, where q is the quality of the object.) When the center of the object is not known, a procedure using O(n) probes and O...

AIM To compare the burning characteristics of the tobacco and paper of manufactured and hand rolled cigarettes, and set a fire safety standard of manufacture to largely reduce the fire risk from discarded cigarettes. METHODS (1) Cigarette extinction test of ignition strength: 40 cigarettes per brand, lit and placed on 15 layers of filter paper, in accordance with ASTM test standard E2187-02. ...